
import {
    Blob,
    btoa,
    createImageBitmap,
    CSSStyleDeclaration,
    performance,
    document,
    DOMParser,
    EventTarget,
    fetch,
    Headers,
    HTMLCanvasElement,
	Image,
    HTMLImageElement,
    ImageBitmap,
    location,
    navigator,
    Request,
    requestAnimationFrame,
    cancelAnimationFrame,
    Response,
    URL,
    window,
    self,
    WebAssembly,
    Worker,
    XMLHttpRequest,
	ImageData,
	TextDecoder,
    core
    } from 'dhtml-weixin';
  
    /**
 * The Ease class provides a collection of easing functions for use with tween.js.
 */
var Easing = Object.freeze({
  Linear: Object.freeze({
      None: function (amount) {
          return amount;
      },
      In: function (amount) {
          return this.None(amount);
      },
      Out: function (amount) {
          return this.None(amount);
      },
      InOut: function (amount) {
          return this.None(amount);
      },
  }),
  Quadratic: Object.freeze({
      In: function (amount) {
          return amount * amount;
      },
      Out: function (amount) {
          return amount * (2 - amount);
      },
      InOut: function (amount) {
          if ((amount *= 2) < 1) {
              return 0.5 * amount * amount;
          }
          return -0.5 * (--amount * (amount - 2) - 1);
      },
  }),
  Cubic: Object.freeze({
      In: function (amount) {
          return amount * amount * amount;
      },
      Out: function (amount) {
          return --amount * amount * amount + 1;
      },
      InOut: function (amount) {
          if ((amount *= 2) < 1) {
              return 0.5 * amount * amount * amount;
          }
          return 0.5 * ((amount -= 2) * amount * amount + 2);
      },
  }),
  Quartic: Object.freeze({
      In: function (amount) {
          return amount * amount * amount * amount;
      },
      Out: function (amount) {
          return 1 - --amount * amount * amount * amount;
      },
      InOut: function (amount) {
          if ((amount *= 2) < 1) {
              return 0.5 * amount * amount * amount * amount;
          }
          return -0.5 * ((amount -= 2) * amount * amount * amount - 2);
      },
  }),
  Quintic: Object.freeze({
      In: function (amount) {
          return amount * amount * amount * amount * amount;
      },
      Out: function (amount) {
          return --amount * amount * amount * amount * amount + 1;
      },
      InOut: function (amount) {
          if ((amount *= 2) < 1) {
              return 0.5 * amount * amount * amount * amount * amount;
          }
          return 0.5 * ((amount -= 2) * amount * amount * amount * amount + 2);
      },
  }),
  Sinusoidal: Object.freeze({
      In: function (amount) {
          return 1 - Math.sin(((1.0 - amount) * Math.PI) / 2);
      },
      Out: function (amount) {
          return Math.sin((amount * Math.PI) / 2);
      },
      InOut: function (amount) {
          return 0.5 * (1 - Math.sin(Math.PI * (0.5 - amount)));
      },
  }),
  Exponential: Object.freeze({
      In: function (amount) {
          return amount === 0 ? 0 : Math.pow(1024, amount - 1);
      },
      Out: function (amount) {
          return amount === 1 ? 1 : 1 - Math.pow(2, -10 * amount);
      },
      InOut: function (amount) {
          if (amount === 0) {
              return 0;
          }
          if (amount === 1) {
              return 1;
          }
          if ((amount *= 2) < 1) {
              return 0.5 * Math.pow(1024, amount - 1);
          }
          return 0.5 * (-Math.pow(2, -10 * (amount - 1)) + 2);
      },
  }),
  Circular: Object.freeze({
      In: function (amount) {
          return 1 - Math.sqrt(1 - amount * amount);
      },
      Out: function (amount) {
          return Math.sqrt(1 - --amount * amount);
      },
      InOut: function (amount) {
          if ((amount *= 2) < 1) {
              return -0.5 * (Math.sqrt(1 - amount * amount) - 1);
          }
          return 0.5 * (Math.sqrt(1 - (amount -= 2) * amount) + 1);
      },
  }),
  Elastic: Object.freeze({
      In: function (amount) {
          if (amount === 0) {
              return 0;
          }
          if (amount === 1) {
              return 1;
          }
          return -Math.pow(2, 10 * (amount - 1)) * Math.sin((amount - 1.1) * 5 * Math.PI);
      },
      Out: function (amount) {
          if (amount === 0) {
              return 0;
          }
          if (amount === 1) {
              return 1;
          }
          return Math.pow(2, -10 * amount) * Math.sin((amount - 0.1) * 5 * Math.PI) + 1;
      },
      InOut: function (amount) {
          if (amount === 0) {
              return 0;
          }
          if (amount === 1) {
              return 1;
          }
          amount *= 2;
          if (amount < 1) {
              return -0.5 * Math.pow(2, 10 * (amount - 1)) * Math.sin((amount - 1.1) * 5 * Math.PI);
          }
          return 0.5 * Math.pow(2, -10 * (amount - 1)) * Math.sin((amount - 1.1) * 5 * Math.PI) + 1;
      },
  }),
  Back: Object.freeze({
      In: function (amount) {
          var s = 1.70158;
          return amount === 1 ? 1 : amount * amount * ((s + 1) * amount - s);
      },
      Out: function (amount) {
          var s = 1.70158;
          return amount === 0 ? 0 : --amount * amount * ((s + 1) * amount + s) + 1;
      },
      InOut: function (amount) {
          var s = 1.70158 * 1.525;
          if ((amount *= 2) < 1) {
              return 0.5 * (amount * amount * ((s + 1) * amount - s));
          }
          return 0.5 * ((amount -= 2) * amount * ((s + 1) * amount + s) + 2);
      },
  }),
  Bounce: Object.freeze({
      In: function (amount) {
          return 1 - Easing.Bounce.Out(1 - amount);
      },
      Out: function (amount) {
          if (amount < 1 / 2.75) {
              return 7.5625 * amount * amount;
          }
          else if (amount < 2 / 2.75) {
              return 7.5625 * (amount -= 1.5 / 2.75) * amount + 0.75;
          }
          else if (amount < 2.5 / 2.75) {
              return 7.5625 * (amount -= 2.25 / 2.75) * amount + 0.9375;
          }
          else {
              return 7.5625 * (amount -= 2.625 / 2.75) * amount + 0.984375;
          }
      },
      InOut: function (amount) {
          if (amount < 0.5) {
              return Easing.Bounce.In(amount * 2) * 0.5;
          }
          return Easing.Bounce.Out(amount * 2 - 1) * 0.5 + 0.5;
      },
  }),
  generatePow: function (power) {
      if (power === void 0) { power = 4; }
      power = power < Number.EPSILON ? Number.EPSILON : power;
      power = power > 10000 ? 10000 : power;
      return {
          In: function (amount) {
              return Math.pow(amount, power);
          },
          Out: function (amount) {
              return 1 - Math.pow((1 - amount), power);
          },
          InOut: function (amount) {
              if (amount < 0.5) {
                  return Math.pow((amount * 2), power) / 2;
              }
              return (1 - Math.pow((2 - amount * 2), power)) / 2 + 0.5;
          },
      };
  },
});

var now = function () { return performance.now(); };

/**
* Controlling groups of tweens
*
* Using the TWEEN singleton to manage your tweens can cause issues in large apps with many components.
* In these cases, you may want to create your own smaller groups of tween
*/
var Group = /** @class */ (function () {
  function Group() {
      this._tweens = {};
      this._tweensAddedDuringUpdate = {};
  }
  Group.prototype.getAll = function () {
      var _this = this;
      return Object.keys(this._tweens).map(function (tweenId) {
          return _this._tweens[tweenId];
      });
  };
  Group.prototype.removeAll = function () {
      this._tweens = {};
  };
  Group.prototype.add = function (tween) {
      this._tweens[tween.getId()] = tween;
      this._tweensAddedDuringUpdate[tween.getId()] = tween;
  };
  Group.prototype.remove = function (tween) {
      delete this._tweens[tween.getId()];
      delete this._tweensAddedDuringUpdate[tween.getId()];
  };
  Group.prototype.update = function (time, preserve) {
      if (time === void 0) { time = now(); }
      if (preserve === void 0) { preserve = false; }
      var tweenIds = Object.keys(this._tweens);
      if (tweenIds.length === 0) {
          return false;
      }
      // Tweens are updated in "batches". If you add a new tween during an
      // update, then the new tween will be updated in the next batch.
      // If you remove a tween during an update, it may or may not be updated.
      // However, if the removed tween was added during the current batch,
      // then it will not be updated.
      while (tweenIds.length > 0) {
          this._tweensAddedDuringUpdate = {};
          for (var i = 0; i < tweenIds.length; i++) {
              var tween = this._tweens[tweenIds[i]];
              var autoStart = !preserve;
              if (tween && tween.update(time, autoStart) === false && !preserve) {
                  delete this._tweens[tweenIds[i]];
              }
          }
          tweenIds = Object.keys(this._tweensAddedDuringUpdate);
      }
      return true;
  };
  return Group;
}());

/**
*
*/
var Interpolation = {
  Linear: function (v, k) {
      var m = v.length - 1;
      var f = m * k;
      var i = Math.floor(f);
      var fn = Interpolation.Utils.Linear;
      if (k < 0) {
          return fn(v[0], v[1], f);
      }
      if (k > 1) {
          return fn(v[m], v[m - 1], m - f);
      }
      return fn(v[i], v[i + 1 > m ? m : i + 1], f - i);
  },
  Bezier: function (v, k) {
      var b = 0;
      var n = v.length - 1;
      var pw = Math.pow;
      var bn = Interpolation.Utils.Bernstein;
      for (var i = 0; i <= n; i++) {
          b += pw(1 - k, n - i) * pw(k, i) * v[i] * bn(n, i);
      }
      return b;
  },
  CatmullRom: function (v, k) {
      var m = v.length - 1;
      var f = m * k;
      var i = Math.floor(f);
      var fn = Interpolation.Utils.CatmullRom;
      if (v[0] === v[m]) {
          if (k < 0) {
              i = Math.floor((f = m * (1 + k)));
          }
          return fn(v[(i - 1 + m) % m], v[i], v[(i + 1) % m], v[(i + 2) % m], f - i);
      }
      else {
          if (k < 0) {
              return v[0] - (fn(v[0], v[0], v[1], v[1], -f) - v[0]);
          }
          if (k > 1) {
              return v[m] - (fn(v[m], v[m], v[m - 1], v[m - 1], f - m) - v[m]);
          }
          return fn(v[i ? i - 1 : 0], v[i], v[m < i + 1 ? m : i + 1], v[m < i + 2 ? m : i + 2], f - i);
      }
  },
  Utils: {
      Linear: function (p0, p1, t) {
          return (p1 - p0) * t + p0;
      },
      Bernstein: function (n, i) {
          var fc = Interpolation.Utils.Factorial;
          return fc(n) / fc(i) / fc(n - i);
      },
      Factorial: (function () {
          var a = [1];
          return function (n) {
              var s = 1;
              if (a[n]) {
                  return a[n];
              }
              for (var i = n; i > 1; i--) {
                  s *= i;
              }
              a[n] = s;
              return s;
          };
      })(),
      CatmullRom: function (p0, p1, p2, p3, t) {
          var v0 = (p2 - p0) * 0.5;
          var v1 = (p3 - p1) * 0.5;
          var t2 = t * t;
          var t3 = t * t2;
          return (2 * p1 - 2 * p2 + v0 + v1) * t3 + (-3 * p1 + 3 * p2 - 2 * v0 - v1) * t2 + v0 * t + p1;
      },
  },
};

/**
* Utils
*/
var Sequence = /** @class */ (function () {
  function Sequence() {
  }
  Sequence.nextId = function () {
      return Sequence._nextId++;
  };
  Sequence._nextId = 0;
  return Sequence;
}());

var mainGroup = new Group();

/**
* Tween.js - Licensed under the MIT license
* https://github.com/tweenjs/tween.js
* ----------------------------------------------
*
* See https://github.com/tweenjs/tween.js/graphs/contributors for the full list of contributors.
* Thank you all, you're awesome!
*/
var Tween = /** @class */ (function () {
  function Tween(_object, _group) {
      if (_group === void 0) { _group = mainGroup; }
      this._object = _object;
      this._group = _group;
      this._isPaused = false;
      this._pauseStart = 0;
      this._valuesStart = {};
      this._valuesEnd = {};
      this._valuesStartRepeat = {};
      this._duration = 1000;
      this._isDynamic = false;
      this._initialRepeat = 0;
      this._repeat = 0;
      this._yoyo = false;
      this._isPlaying = false;
      this._reversed = false;
      this._delayTime = 0;
      this._startTime = 0;
      this._easingFunction = Easing.Linear.None;
      this._interpolationFunction = Interpolation.Linear;
      // eslint-disable-next-line
      this._chainedTweens = [];
      this._onStartCallbackFired = false;
      this._onEveryStartCallbackFired = false;
      this._id = Sequence.nextId();
      this._isChainStopped = false;
      this._propertiesAreSetUp = false;
      this._goToEnd = false;
  }
  Tween.prototype.getId = function () {
      return this._id;
  };
  Tween.prototype.isPlaying = function () {
      return this._isPlaying;
  };
  Tween.prototype.isPaused = function () {
      return this._isPaused;
  };
  Tween.prototype.to = function (target, duration) {
      if (duration === void 0) { duration = 1000; }
      if (this._isPlaying)
          throw new Error('Can not call Tween.to() while Tween is already started or paused. Stop the Tween first.');
      this._valuesEnd = target;
      this._propertiesAreSetUp = false;
      this._duration = duration;
      return this;
  };
  Tween.prototype.duration = function (duration) {
      if (duration === void 0) { duration = 1000; }
      this._duration = duration;
      return this;
  };
  Tween.prototype.dynamic = function (dynamic) {
      if (dynamic === void 0) { dynamic = false; }
      this._isDynamic = dynamic;
      return this;
  };
  Tween.prototype.start = function (time, overrideStartingValues) {
      if (time === void 0) { time = now(); }
      if (overrideStartingValues === void 0) { overrideStartingValues = false; }
      if (this._isPlaying) {
          return this;
      }
      // eslint-disable-next-line
      this._group && this._group.add(this);
      this._repeat = this._initialRepeat;
      if (this._reversed) {
          // If we were reversed (f.e. using the yoyo feature) then we need to
          // flip the tween direction back to forward.
          this._reversed = false;
          for (var property in this._valuesStartRepeat) {
              this._swapEndStartRepeatValues(property);
              this._valuesStart[property] = this._valuesStartRepeat[property];
          }
      }
      this._isPlaying = true;
      this._isPaused = false;
      this._onStartCallbackFired = false;
      this._onEveryStartCallbackFired = false;
      this._isChainStopped = false;
      this._startTime = time;
      this._startTime += this._delayTime;
      if (!this._propertiesAreSetUp || overrideStartingValues) {
          this._propertiesAreSetUp = true;
          // If dynamic is not enabled, clone the end values instead of using the passed-in end values.
          if (!this._isDynamic) {
              var tmp = {};
              for (var prop in this._valuesEnd)
                  tmp[prop] = this._valuesEnd[prop];
              this._valuesEnd = tmp;
          }
          this._setupProperties(this._object, this._valuesStart, this._valuesEnd, this._valuesStartRepeat, overrideStartingValues);
      }
      return this;
  };
  Tween.prototype.startFromCurrentValues = function (time) {
      return this.start(time, true);
  };
  Tween.prototype._setupProperties = function (_object, _valuesStart, _valuesEnd, _valuesStartRepeat, overrideStartingValues) {
      for (var property in _valuesEnd) {
          var startValue = _object[property];
          var startValueIsArray = Array.isArray(startValue);
          var propType = startValueIsArray ? 'array' : typeof startValue;
          var isInterpolationList = !startValueIsArray && Array.isArray(_valuesEnd[property]);
          // If `to()` specifies a property that doesn't exist in the source object,
          // we should not set that property in the object
          if (propType === 'undefined' || propType === 'function') {
              continue;
          }
          // Check if an Array was provided as property value
          if (isInterpolationList) {
              var endValues = _valuesEnd[property];
              if (endValues.length === 0) {
                  continue;
              }
              // Handle an array of relative values.
              // Creates a local copy of the Array with the start value at the front
              var temp = [startValue];
              for (var i = 0, l = endValues.length; i < l; i += 1) {
                  var value = this._handleRelativeValue(startValue, endValues[i]);
                  if (isNaN(value)) {
                      isInterpolationList = false;
                      console.warn('Found invalid interpolation list. Skipping.');
                      break;
                  }
                  temp.push(value);
              }
              if (isInterpolationList) {
                  // if (_valuesStart[property] === undefined) { // handle end values only the first time. NOT NEEDED? setupProperties is now guarded by _propertiesAreSetUp.
                  _valuesEnd[property] = temp;
                  // }
              }
          }
          // handle the deepness of the values
          if ((propType === 'object' || startValueIsArray) && startValue && !isInterpolationList) {
              _valuesStart[property] = startValueIsArray ? [] : {};
              var nestedObject = startValue;
              for (var prop in nestedObject) {
                  _valuesStart[property][prop] = nestedObject[prop];
              }
              // TODO? repeat nested values? And yoyo? And array values?
              _valuesStartRepeat[property] = startValueIsArray ? [] : {};
              var endValues = _valuesEnd[property];
              // If dynamic is not enabled, clone the end values instead of using the passed-in end values.
              if (!this._isDynamic) {
                  var tmp = {};
                  for (var prop in endValues)
                      tmp[prop] = endValues[prop];
                  _valuesEnd[property] = endValues = tmp;
              }
              this._setupProperties(nestedObject, _valuesStart[property], endValues, _valuesStartRepeat[property], overrideStartingValues);
          }
          else {
              // Save the starting value, but only once unless override is requested.
              if (typeof _valuesStart[property] === 'undefined' || overrideStartingValues) {
                  _valuesStart[property] = startValue;
              }
              if (!startValueIsArray) {
                  // eslint-disable-next-line
                  // @ts-ignore FIXME?
                  _valuesStart[property] *= 1.0; // Ensures we're using numbers, not strings
              }
              if (isInterpolationList) {
                  // eslint-disable-next-line
                  // @ts-ignore FIXME?
                  _valuesStartRepeat[property] = _valuesEnd[property].slice().reverse();
              }
              else {
                  _valuesStartRepeat[property] = _valuesStart[property] || 0;
              }
          }
      }
  };
  Tween.prototype.stop = function () {
      if (!this._isChainStopped) {
          this._isChainStopped = true;
          this.stopChainedTweens();
      }
      if (!this._isPlaying) {
          return this;
      }
      // eslint-disable-next-line
      this._group && this._group.remove(this);
      this._isPlaying = false;
      this._isPaused = false;
      if (this._onStopCallback) {
          this._onStopCallback(this._object);
      }
      return this;
  };
  Tween.prototype.end = function () {
      this._goToEnd = true;
      this.update(Infinity);
      return this;
  };
  Tween.prototype.pause = function (time) {
      if (time === void 0) { time = now(); }
      if (this._isPaused || !this._isPlaying) {
          return this;
      }
      this._isPaused = true;
      this._pauseStart = time;
      // eslint-disable-next-line
      this._group && this._group.remove(this);
      return this;
  };
  Tween.prototype.resume = function (time) {
      if (time === void 0) { time = now(); }
      if (!this._isPaused || !this._isPlaying) {
          return this;
      }
      this._isPaused = false;
      this._startTime += time - this._pauseStart;
      this._pauseStart = 0;
      // eslint-disable-next-line
      this._group && this._group.add(this);
      return this;
  };
  Tween.prototype.stopChainedTweens = function () {
      for (var i = 0, numChainedTweens = this._chainedTweens.length; i < numChainedTweens; i++) {
          this._chainedTweens[i].stop();
      }
      return this;
  };
  Tween.prototype.group = function (group) {
      if (group === void 0) { group = mainGroup; }
      this._group = group;
      return this;
  };
  Tween.prototype.delay = function (amount) {
      if (amount === void 0) { amount = 0; }
      this._delayTime = amount;
      return this;
  };
  Tween.prototype.repeat = function (times) {
      if (times === void 0) { times = 0; }
      this._initialRepeat = times;
      this._repeat = times;
      return this;
  };
  Tween.prototype.repeatDelay = function (amount) {
      this._repeatDelayTime = amount;
      return this;
  };
  Tween.prototype.yoyo = function (yoyo) {
      if (yoyo === void 0) { yoyo = false; }
      this._yoyo = yoyo;
      return this;
  };
  Tween.prototype.easing = function (easingFunction) {
      if (easingFunction === void 0) { easingFunction = Easing.Linear.None; }
      this._easingFunction = easingFunction;
      return this;
  };
  Tween.prototype.interpolation = function (interpolationFunction) {
      if (interpolationFunction === void 0) { interpolationFunction = Interpolation.Linear; }
      this._interpolationFunction = interpolationFunction;
      return this;
  };
  // eslint-disable-next-line
  Tween.prototype.chain = function () {
      var tweens = [];
      for (var _i = 0; _i < arguments.length; _i++) {
          tweens[_i] = arguments[_i];
      }
      this._chainedTweens = tweens;
      return this;
  };
  Tween.prototype.onStart = function (callback) {
      this._onStartCallback = callback;
      return this;
  };
  Tween.prototype.onEveryStart = function (callback) {
      this._onEveryStartCallback = callback;
      return this;
  };
  Tween.prototype.onUpdate = function (callback) {
      this._onUpdateCallback = callback;
      return this;
  };
  Tween.prototype.onRepeat = function (callback) {
      this._onRepeatCallback = callback;
      return this;
  };
  Tween.prototype.onComplete = function (callback) {
      this._onCompleteCallback = callback;
      return this;
  };
  Tween.prototype.onStop = function (callback) {
      this._onStopCallback = callback;
      return this;
  };
  /**
   * @returns true if the tween is still playing after the update, false
   * otherwise (calling update on a paused tween still returns true because
   * it is still playing, just paused).
   */
  Tween.prototype.update = function (time, autoStart) {
      if (time === void 0) { time = now(); }
      if (autoStart === void 0) { autoStart = true; }
      if (this._isPaused)
          return true;
      var property;
      var elapsed;
      var endTime = this._startTime + this._duration;
      if (!this._goToEnd && !this._isPlaying) {
          if (time > endTime)
              return false;
          if (autoStart)
              this.start(time, true);
      }
      this._goToEnd = false;
      if (time < this._startTime) {
          return true;
      }
      if (this._onStartCallbackFired === false) {
          if (this._onStartCallback) {
              this._onStartCallback(this._object);
          }
          this._onStartCallbackFired = true;
      }
      if (this._onEveryStartCallbackFired === false) {
          if (this._onEveryStartCallback) {
              this._onEveryStartCallback(this._object);
          }
          this._onEveryStartCallbackFired = true;
      }
      elapsed = (time - this._startTime) / this._duration;
      elapsed = this._duration === 0 || elapsed > 1 ? 1 : elapsed;
      var value = this._easingFunction(elapsed);
      // properties transformations
      this._updateProperties(this._object, this._valuesStart, this._valuesEnd, value);
      if (this._onUpdateCallback) {
          this._onUpdateCallback(this._object, elapsed);
      }
      if (elapsed === 1) {
          if (this._repeat > 0) {
              if (isFinite(this._repeat)) {
                  this._repeat--;
              }
              // Reassign starting values, restart by making startTime = now
              for (property in this._valuesStartRepeat) {
                  if (!this._yoyo && typeof this._valuesEnd[property] === 'string') {
                      this._valuesStartRepeat[property] =
                          // eslint-disable-next-line
                          // @ts-ignore FIXME?
                          this._valuesStartRepeat[property] + parseFloat(this._valuesEnd[property]);
                  }
                  if (this._yoyo) {
                      this._swapEndStartRepeatValues(property);
                  }
                  this._valuesStart[property] = this._valuesStartRepeat[property];
              }
              if (this._yoyo) {
                  this._reversed = !this._reversed;
              }
              if (this._repeatDelayTime !== undefined) {
                  this._startTime = time + this._repeatDelayTime;
              }
              else {
                  this._startTime = time + this._delayTime;
              }
              if (this._onRepeatCallback) {
                  this._onRepeatCallback(this._object);
              }
              this._onEveryStartCallbackFired = false;
              return true;
          }
          else {
              if (this._onCompleteCallback) {
                  this._onCompleteCallback(this._object);
              }
              for (var i = 0, numChainedTweens = this._chainedTweens.length; i < numChainedTweens; i++) {
                  // Make the chained tweens start exactly at the time they should,
                  // even if the `update_()` method was called way past the duration of the tween
                  this._chainedTweens[i].start(this._startTime + this._duration, false);
              }
              this._isPlaying = false;
              return false;
          }
      }
      return true;
  };
  Tween.prototype._updateProperties = function (_object, _valuesStart, _valuesEnd, value) {

      for (var property in _valuesEnd) {
          // Don't_update properties that do not exist in the source object
          if (_valuesStart[property] === undefined) {
              continue;
          }
          var start = _valuesStart[property] || 0;
          var end = _valuesEnd[property];
          var startIsArray = Array.isArray(_object[property]);
          var endIsArray = Array.isArray(end);
          var isInterpolationList = !startIsArray && endIsArray;
          if (isInterpolationList) {
              _object[property] = this._interpolationFunction(end, value);
          }
          else if (typeof end === 'object' && end) {
              // eslint-disable-next-line
              // @ts-ignore FIXME?
              this._updateProperties(_object[property], start, end, value);
          }
          else {
              // Parses relative end values with start as base (e.g.: +10, -3)
              end = this._handleRelativeValue(start, end);
              // Protect against non numeric properties.
              if (typeof end == 'number') {
                  // eslint-disable-next-line
                  // @ts-ignore FIXME?
                  _object[property] = start + (end - start) * value; 
              }
          }
      }
  };
  Tween.prototype._handleRelativeValue = function (start, end) {
      if (typeof end !== 'string') {
          return end;
      }
      if (end.charAt(0) === '+' || end.charAt(0) === '-') {
          return start + parseFloat(end);
      }
      return parseFloat(end);
  };
  Tween.prototype._swapEndStartRepeatValues = function (property) {
      var tmp = this._valuesStartRepeat[property];
      var endValue = this._valuesEnd[property];
      if (typeof endValue === 'string') {
          this._valuesStartRepeat[property] = this._valuesStartRepeat[property] + parseFloat(endValue);
      }
      else {
          this._valuesStartRepeat[property] = this._valuesEnd[property];
      }
      this._valuesEnd[property] = tmp;
  };
  return Tween;
}());

var VERSION = '21.0.0';

/**
* Tween.js - Licensed under the MIT license
* https://github.com/tweenjs/tween.js
* ----------------------------------------------
*
* See https://github.com/tweenjs/tween.js/graphs/contributors for the full list of contributors.
* Thank you all, you're awesome!
*/
var nextId = Sequence.nextId;
/**
* Controlling groups of tweens
*
* Using the TWEEN singleton to manage your tweens can cause issues in large apps with many components.
* In these cases, you may want to create your own smaller groups of tweens.
*/
var TWEEN = mainGroup;
// This is the best way to export things in a way that's compatible with both ES
// Modules and CommonJS, without build hacks, and so as not to break the
// existing API.
// https://github.com/rollup/rollup/issues/1961#issuecomment-423037881
var getAll = TWEEN.getAll.bind(TWEEN);
var removeAll = TWEEN.removeAll.bind(TWEEN);
var add = TWEEN.add.bind(TWEEN);
var remove = TWEEN.remove.bind(TWEEN);
var update = TWEEN.update.bind(TWEEN);
var exports = {
  Easing: Easing,
  Group: Group,
  Interpolation: Interpolation,
  now: now,
  Sequence: Sequence,
  nextId: nextId,
  Tween: Tween,
  VERSION: VERSION,
  getAll: getAll,
  removeAll: removeAll,
  add: add,
  remove: remove,
  update: update,
};

export { Easing, Group, Interpolation, Sequence, Tween, VERSION, add, exports as default, getAll, nextId, now, remove, removeAll, update };
